Lily: I think what Barney's saying is that definitions are important. You're their teacher, not their friend.
Barney: Exactly.
Lily: If people don't know their place, nobody's happy.
Barney: Amen.
Lily: You have to make things clear.
Barney: Run tell that.
Lily: Define the relationship.
Barney: Yes! No! Lily, private convo time.